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Fjernet gruppebegrensning (allokerer GID-listen dynamisk).

This commit is contained in:
David Kaasen 2017-09-29 13:45:25 +00:00
parent 33c3ba82e2
commit 63d34a6e15
1 changed files with 13 additions and 3 deletions
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16
common.c
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@ -204,20 +204,28 @@ member(char *gr) {
char **get_group_names(int *numgroups)
{
char **grouplist;
gid_t gids[33];
gid_t *gids = NULL;
int real_nr_groups, nr_groups, i;
struct group *g;
nr_groups = 0;
nr_groups = getgroups(32, &gids[0]); /* Allow a max of 32 groups */
/* Find number and allocate */
nr_groups = getgroups(0, NULL);
if (nr_groups == -1) {
dberror(NULL, "Error while trying to find group count");
return NULL;
}
gids = malloc(nr_groups*sizeof(gid_t));
/* Fetch group IDs */
nr_groups = getgroups(nr_groups, gids);
if (nr_groups == -1) {
dberror(NULL, "Error while trying to fetch group info");
return NULL;
}
grouplist = malloc(33 * sizeof(char *));
grouplist = malloc((nr_groups + 1)*sizeof(char *));
real_nr_groups = 0;
for (i = 0; i < nr_groups; i++) {
@ -232,6 +240,8 @@ char **get_group_names(int *numgroups)
}
grouplist[real_nr_groups] = NULL;
free(gids);
*numgroups = real_nr_groups;
return grouplist;